The melted coins. —Dixon, Franklin W.

Suspecting that their friend has been swindled, the Hardy brothers investigate and find themselves on the trail of a much larger criminal operation.

Scavenger hunt heist —Dixon, Franklin W., author.

Embarking on a class trip to Bayport Bear Park, Frank and Joe join in an exciting scavenger hunt before learning that the prizes slated for the winning team have been stolen or destroyed by an unknown culprit.

Franklin goes to the hospital —Jennings, Sharon.

The vanishing game —Dixon, Franklin W., author.

While attending an amusement park under the new ownership of their friend Daisy, Joe and Frank investigate the disappearance of a patron who was last seen riding a hit attraction, an event that has threatened Daisy's fam...

The time warp wonder —Dixon, Franklin W., author.

"Detective brothers Frank and Joe work to debunk a time travel machine before it's too late"-- Provided by publisher.

Shadows at Predator Reef —Dixon, Franklin W., author.

When a five-hundred-pound sea turtle goes missing from the Bayport Aquarium, Frank and Joe Hardy investigate, discovering a network of underground tunnels hidden beneath Bayport that is aiding a sinister smuggling ring.

The great pumpkin smash —Dixon, Franklin W., author.

Brothers Frank and Joe Hardy investigate strange occurrences during Bayport Zoo's annual Halloween party, Boo at the Zoo.

Hunting for hidden gold —Dixon, Franklin W., author.

"Now with a brand-new look, this is an edition that collectors won't want to miss! In Hunting for Hidden Gold, the fifth book in the incredibly popular, long-running series, Frank and Joe Hardy pursue a notorious gang re...

The secret of the lost tunnel —Dixon, Franklin W.

Talent show tricks —Dixon, Franklin W., author.

"Frank and Joe are excited for the school's annual talent show! Frank is working backstage, and Joe is going to show off his sweet juggling skills. Someone keeps playing pranks on all the acts-- bubbles are found in some...

Franklin and the wonder —Endrulat, Harry.

The mark on the door —Dixon, Franklin W.

The twisted claw —Dixon, Franklin W.

The sign of the crooked arrow —Dixon, Franklin W.

The Hardy brothers interrupt their investigations of jewelry-store holdups to answer a plea from their cousin on a New Mexico cattle ranch.

The disappearance —Dixon, Franklin W., author.

aWhile at a comic book convention, the Hardy brothers and Frank's new girlfriend Jones meet up with Jones's online friend Harper, but when she disappears overnight, the brothers start looking into her life and uncovering...

Franklin and the computer —Jennings, Sharon, 1954-

Showdown at widow creek —Dixon, Franklin W., author.

When the rodeo comes to Bayport, Joe and Frank catch the ranch hands trying to steal a prize horse. After the boys stop the theft, they're recruited to help drive the cattle back to the ranch. However, mysterious things ...

The gray hunter's revenge —Dixon, Franklin W., author.

The Hardy Boys are asked to investigate when their favorite thriller writer dies in what may have been an accident, while the press swarms Bayport to get information about the author's last novel.

Franklin and the contest —Jennings, Sharon.

The pirate ghost —Dixon, Franklin W., author.